All advice and information contained within this publication is provided in good faith. However, the authors and publishers can accept no liability or responsibility for any errors, omissions or inaccuracies contained herein. GE SeaCo recommends that strict observance of all the relevant statutory codes of practice is maintained and that routine servicing and inspection procedures are undertaken by competent personnel and trained in safety procedures. July 2009

Tank containers are designed to transport cargoes which may be dangerous. tanks may not possess adequate oxygen to sustain life or may contain harmful or explosive vapours hazardous to one's health. Characteristics and safety hazards associated with specific cargoes are available from manufacturers on the Material Safety Data Sheets (MSDS). Cargoes might be transported under a blanket layer of inert gas such as nitrogen.
INTRODUCTION Inspections should be carried out in compliance with international and local laws including health and safety. Do not operate any valves/fittings or enter any tank which does not possess a valid safety document
5
. An inert gas cannot support human life. SAFE INSPECTION PROCEDURES AND PRACTICE. SEE SECTION 2 FOR DEFINITION OF A VALID SAFETY DOCUMENT. The following is for guidance only.DO NOT OPERATE ANY VALVES /FITTINGS OR ENTER ANY TANK WHICH DOES NOT POSSESS A VALID SAFETY DOCUMENT. Prior to a thorough cleaning and ventilation.5% of oxygen is likely to cause suffocation (asphyxiation). the workplace. breathing any gas mixture possessing less than 19. inspection and working conditions.

Entry permits are designed to help ensure compliance with confined space entry laws and regulations of all governments having jurisdiction (nation. Check that an attendant who has full knowledge of the time of entry is stationed outside the tank in the immediate vicinity and that the inspector and attendant are equipped with all safety and rescue equipment required by all applicable laws and regulations. Check that the tank has been cleaned. Check that the tank has been adequately ventilated with fresh air to ensure a minimum oxygen content of 19%. Check the tank atmosphere to determine the absence of explosive or flammable vapour or gas.
-
-
SPECIFIC INSPECTION HAZARDS Personnel must be mindful of certain specific hazards which could potentially arise when inspections or testing of containers are performed. state/province. etc.). Before entering a tank the inspector must: Check the last cargo and safety data (MSDS) and take appropriate action.
6
. These include but are not limited to: Asphyxiation or poisoning upon entry into an unclean tank or a tank possessing insufficient oxygen. locality.Personnel must not enter any tank container until a tank entry permit has been completed.

Sudden release of pressure from discharge valves or manlid if opened while tank is under pressure. Jamming of fingers in open valves during inspection. or when depressurising the steam heating system. Avoid standing in front of fittings. Do not place fingers into open valves as sudden closure could crush fingers. Sudden release of steam pressure from steam tubes. NOTE: ALL PERSONNEL HAVE A RESPONSIBILITY FOR THEIR OWN HEALTH AND SAFETY AND MUST TAKE CARE TO REDUCE ANY RISKS TO AN ABSOLUTE MINIMUM. Avoid standing in front of steam tube openings or quick release valves if the possibility of sudden pressure discharge exists.
7
. Do not depressurise the tank vessel by attempting to open the manlid. openings or over the manlid if the possibility of sudden pressure discharge exists. Ensure repairs to damaged sections of ladder or walkway prior to treading on them if condition is unsafe to proceed. Falling from damaged ladder or walkway. Ensure that there is no contamination on the ladder or walkway which may cause loss of grip. Personnel should depressurise the tank vessel by carefully operating the airline valve. Always face away from the manlid opening when finally cracking and lifting the manlid to avoid inhalation of any potentially hazardous escaping fumes or unanticipated pressure release.

DEFINITIONS
The following definitions are used in this manual: 1 DAMAGE
Damage is one or more physical defects in a container caused by a single event or a series of events such as impact. cargo attack etc. which exceeds the acceptable limits as defined in Section 8 entitled Inspection Guidelines for Tank Containers of this handbook. pitting or gouges to the interior or exterior of the tank.
11
. 2 AGE RELATED DETERIORATION
Age Related Deterioration (ARD) is one or more physical defects resulting inevitably from exposure of the container to conditions for which it was designed. This includes corrosion. shell. fittings or accessories. It precludes the existence of any physical defect which is considered unacceptable in accordance with GE SeaCo's Inspection Guidelines. abrasion contamination. as defined in Section 8 of this handbook and which may have led to the deteriorated condition. 3 IMPROPER REPAIRS
An improper repair is any repair performed where any one of the following defects is present: The repair has not been performed in strict accordance with GE SeaCo guidelines.

The repair has an adverse affect on the original ISO dimensions of the container. Sub standard preparation or painting.
-
-
-
4
FULL REFURBISHMENT
Full refurbishment is the process of removing all the paint coating and any corrosion from the tank frame by abrasive blasting followed by repainting and replacing the cladding and insulation. However. Use of incorrect materials. The repair affects the structural integrity of the container.-
The repair is of a quality or condition which could still be defined as damage according to GE SeaCo guidelines. Poor quality welding or workmanship. 5 PARTIAL REFURBISHMENT
Partial refurbishment is the process of renovating areas of the tank to an extent less than that defined as Full Refurbishment. it is not essential for the cladding to be included in a full refurbishment process. Sub-standard cleaning or polishing of the tank or fittings.
12
. The insulation and cladding may be refurbished as part of a full refurbishment process.

8
STATUTORY TEST DATE
The date when a periodic inspection and pressure test of the tank was carried out to comply with the regulations of the governmental approving agencies. Electric plugs.6
TANK
Tank Container in its entirety. nuts and washers. IMO2 and IMO5).
9
DETACHABLE PARTS are are the the
Detachable parts are components which not permanently attached to the tank and designed for easy detachment to facilitate loading. The GE SeaCo tank fleet includes UN Types T1 to T50 (IMO1. unloading or general operation of tank container. Bolts. (Not just the tank shell)
7
UN PORTABLE TANK
Tank designed and approved for the carriage of dangerous goods (as defined by UN dangerous goods list).
10
CONSEQUENTIAL DAMAGE
Any damage resulting from the lessee's failure to carry out a necessary repair. Syphon tubes. gaskets and seals. Examples of detachable parts are: Valves. Blank flanges and outlet caps.
13
.

particles of previous cargo and odour.N. reference number. See Appendix 2. corrosion. .1 for an example of a Certificate of Cleanliness. together with the U. contamination.The tank is clean and dry. b) Material Safety Data Sheet (MSDS)
A document issued by the manufacturer of the cargo detailing the cargo characteristics and safety precautions. c) Certificate of Cleanliness
A document issued by a qualified person stating: Tank container serial number Date.
14
. Time and Place of issue Name of Survey Company Name of Cleaning Company Last cargo and UN number Method of Cleaning Gas free entry permit A thorough visual examination has been carried out and the interior of the tank. Note: the brand name or proprietary name of the cargo is NOT the proper shipping name.11 a)
CLEANING TERMINOLOGY Evidence of Last Cargo
A written document from a qualified and authorised employee or representative of the lessee stating the proper shipping name of the last cargo. valves and fittings are free of pitting.

For certain cargo an entry permit / safety certificate will be necessary. For example. Circumstances may vary and it is not possible to set a specific validity date. in order that personnel may safely carry out prescribed tasks. See Appendix 2. valves and fittings are free of contamination. allowance should be made for the transit time between the point of cleaning and the off-hire depot. The document should state: Tank container serial number Date. or surveyor. Time and Place of issue Name of Survey Company Name of person issuing certificate Last Cargo and UN number MSDS reference Period of validity of the permit
15
. d) Cleaning Receipt (wash ticket)
A document issued by the qualified person of a specialist cleaning contractor responsible for the tank cleaning stating that A thorough visual examination has been carried out and the interior of the tank.2 for an example of a Cleaning Receipt. e) Entry Permit (or Safety Certificate)
A document issued by a qualified person of the repair depot. particles of previous cargo and odour.Cleaning Certificate Validity Date The Cleaning Certificate date of issue should be recent. An evaluation of the circumstances and the issue date should be undertaken to ensure that the tank has not been used since the time of issue.

See Appendix 2. surveyor. h) Specialist Cleaning Contractor
A company of high-standing local reputation skilled in tank cleaning and licensed by appropriate governmental agencies and a member of applicable trade organisations.-
Tests carried out (as applicable) oxygen reading (gas free) Purpose of tank entry All necessary precautions have been taken to make the tank safe for entering and carrying out prescribed work during the specified time.g. Depending on the circumstances a cleaning document may be the: g) Cleanliness receipt Cleanliness certificate Entry permit (safety certificate) Qualified Person (e. quality controller)
A person that is properly trained. Any delays in carrying out subsequent repair work may necessitate the issue of a further Entry Permit. it must be current.
16
. The validity of the Entry Permit is strictly on a limited time basis. f) Cleaning Document
Is a written declaration that the tank has been cleaned. competent and experienced and is authorised by the employer or governmental body as is appropriate.3 for an example of an Entry Permit. to undertake the task.

i)
Transferable Stain
A stain or discoloration which can be removed from the metal surface of the tank shell or fittings by normal cleaning methods or by the use of a nylon abrasive Scotchbrite pad.
17
. 12 GE SeaCo Surveyor
Any GE SeaCo Engineer or any Engineer authorised by GE SeaCo to carry out Tank inspections or surveys.

19
.2 CLEANING RECEIPT (Wash Ticket)
ISSUED BY CLEANING COMPANY
CLEANING COMPANY NAME AND ADDRESS:
* * * * * * *
TANK NO: PLACE OF ISSUE: DATE OF ISSUE / TIME : CLEANING PROCESS: LAST CARGO : UN NO. The tank is clean and dry. valves and fittings are free of contamination. : Gas free Entry Permit issued REMARKS YES
*
A thorough visual examination has been carried out and the interior of the tank. YES
*
NAME (PRINT)
SIGNED
(being the qualified surveyor)
The cleaning receipt as a minimum must contain the details marked *.APPENDIX 2. previous cargo and odour.

NAME (PRINT) (being the qualified surveyor) SIGNED
20
. : TIME TIME DATE OF ISSUE / TIME :
PURPOSE OF TANK ENTRY
TESTS OF CONTAMINATES AND ATMOSPHERE IN THE TANK TEST TYPE RESULT SATISFACTORY YES / NO
Safety equipment to be worn by person making entry into tank
A full examination of the hazard of the tank has been carried out and the appropriate safety tests completed with acceptable results.3 ENTRY PERMIT
ISSUED BY DEPOT / SURVEYOR
ISSUED BY DEPOT . The tank is safe to enter.APPENDIX 2.SURVEY COMPANY NAME AND ADDRESS:
TANK NO: PLACE OF ISSUE: CLEANING PROCESS: LAST CARGO : VALID FROM: TO: DATE DATE UN NO.NAME AND ADDRESS:
ISSUED BY SURVEYOR .

COMPLETION OF TANKCONTAINER REPAIR ESTIMATE
The following instructions are for the benefit of depots that prepare manual Repair Estimates (RE). INTRODUCTION A Repair Estimate (RE) (which performs the function of off-hire damage report) must be completed by the depot for every tank entering the depot off lease. Freemove units moved in status ‘A’ condition or new units ex manufacturer must be checked to ensure they have not suffered transit damage. If such units have transit damage then a Repair Estimate must be completed for that unit. For Tank Containers the Repair Estimate is a single page document. Listed below are descriptions of the entries that must be made in each section. * Depots should if possible report the Repair Estimate via EDI using their depot management system. (1) LAST CARGO

Enter the proper shipping name and UN number of the last cargo carried. Note :- abbreviations of the cargo name, brand name or proprietary name are not acceptable. The depot must be in receipt of a safety document stating the proper name of the last cargo, together with the UN reference number, prior to carrying out the inspection.

23

Additionally, information concerning last cargo will have already been advised in writing by the GE SeaCo Ops Centre prior to redelivery. It is vital, both for the safety of personnel and in order to convey last cargo data to the next user of the tank, that the last cargo data is accurate in every detail. If the information is missing or incomplete for any reason, the depot must contact the last lessee or GE SeaCo Customer Service Centre. Do not enter incorrect or incomplete information. (2) TEST DATE

This refers to the last 2½/5 year statutory pressure test. Enter date of last test shown on the tank data plate. NOTE: Refer to Section 8, Sub-Section 12c to determine when the statutory testing must be performed. (3) CONTAINER GRADING

Unlike other equipment types there are no grading procedures applicable for tanks. (4) COMPONENT

If estimating with the ISO/Cedex coding system use the 3 digit alpha codes to denote the component. Enter the 3 digit alpha code shown on the Component List for any item which is damaged. Appendix 3.2 shows a list of Tank Components.

24

A combination of two or more codes to describe damage to any individual item is not permitted. Only note damages that exceed the acceptable limits. If estimating with the GE SeaCo coding system use the 2 digit numeric codes to denote the damage.3 for the full description of all damages Codes applicable to Tank Containers and a GE SeaCo to Cedex/ISO conversion. the damage code system has important Operational as well as Technical implications. as defined in the Inspection Guidelines. The damage code used to describe any particular damage will automatically allocate the costs of the repair. Notes on the use of Damage Codes: The Cedex/ISO alpha code is shown in brackets after the GE S numeric code.Old 25 (IN) : Improper Repair .) (i) Damage Codes must always be used as a single code. whether the improper repair was carried out during the most recent lease (Code 25 (IN)). Therefore. See Appendix 3.(5)
DAMAGE CODES
If estimating with the ISO/Cedex coding system use the 2 digit alpha codes to denote the damage.
25
. or before it (Code 24 (IO)). (ii) Improper Repairs (Codes 24 (IO) & 25 (IN)) There are two possible codes which can be used: 24 (IO) : Improper Repair .New The Inspector must decide by reference to the On-Hire Date (see (4) above).

by partial refurbishment. For containers less than 5 years old use Damage Code 62 (MN) . The nature of the damage will be sufficiently implied in the appropriate Repair Code(s) which are entered in the adjoining column (see (11) below). which requires rectification. See Appendix 3.(iii) Rust. (iv) Consequential Damage (Code 09 (CD)) Must be used for any damage resulting from the Lessee's failure to carry out a necessary repair.
26
. (c) In the case of full refurbishment of a tank container Damage code 17 (CO) can only be used for containers which are more than 5 years old or which are subject to a Refurbishment TTB.(New Manufacturing Defect) or 09 (CD) (Consequential Damage). (b) It must be used in any line of the Repair Estimate to describe rust.4 below for a full description of the use of Damage Code 09 (CD). or Damage caused by Rust (Code 17 (CO)) Code 17 (CO) must be used only in clearly defined circumstances as follows: (a) It must be used as a single code in any line of the Repair Estimate to describe damage caused by rust which is not a result of a Manufacturer's Defect or cargo attack or contamination. as defined in (a) above.

is determined by the Damage Code. Appendix 3.e. (b) Code 62 (MN) must be entered to describe 'new' defects i.5 shows the Damage Codes which must be used in each of the circumstances defined.existing 62 (MN) : Manufacturers' Defect . (vi) Allocation of Costs The allocation of repair costs between the two principal account categories. not yet identified by TTB. See Section 5 regarding the procedure for reporting both existing and new manufacturers' defects. The first heading entitled ANY ITEM covers all components of the tank.new (a) Code 26 (ME) must be used to describe damage caused by a manufacturers' defect which is subject to a Tank Technical Bulletin (TTB). The TTB identifies the series of containers affected and gives instructions on repair method and reporting procedure.(v) Manufacturers' Defects (Codes 26 (ME) and 62(MN)) There are two possible codes which can be used: 26 (ME) : Manufacturers' Defect . Lessee and GE SeaCo .
27
.

4 for the full list of Repair Codes. (7) DAMAGE/DIMENSIONS . The type of damage and repair method proposed should have already been noted in the Damage and Repair Codes. no description of the damage and repair methods is required except in the case of damages or repair methods that cannot be adequately described by use of the coding system.(6)
REPAIR CODES
Numeric (GE S) or alpha (Cedex/ISO) codes must be used to describe the type or method of repair required to rectify damage previously noted in the Damage Code column.
28
.REMARKS
Specify the quantity and extent of repair requirement against each damaged component. See Appendix 3. Therefore.

In addition a copy of the chart must be faxed to the Engineering and Technical Services Dept. GE SeaCo London. identify lining material. Report by Enter Inspector's name. When used to document unsatisfactory internal conditions. or if lined tank. Inspector Signature Enter Inspector's signature (at bottom of form) Tank Unit Type Enter GE SeaCo tank code Tank Material Enter barrel material. scoring. AISI Type 316 steel. Date Enter date of inspection.INTERNAL SHELL CONDITION CHART INTRODUCTION Whenever there is evidence of interior tank stains. Depot/Location Enter depot name.1 for an example of a form. shell pitting..e.
29
. The Inspector enters the following information when completing the form: (1) STANDING DATA Tank Serial Number Enter tank prefix. this must be documented on the Tank Container Interior Shell Chart. rust. (Fax 00 44 (0)207 939 5650 ). or preferably. the Tank Container Interior Shell Chart becomes an addendum to the Tank RE and has the same distribution as the RE. scratches. i. GES depot code for depot location at which inspection is performed. serial number and check digit. See Appendix 3. gouges or any other unsatisfactory internal condition.

ullage line. Show measurements for affected areas whenever feasible. Tick flat bottom. indicate the extent. crater or cavity as appropriate.g. location. Pitting Shape Indicate most prevalent shape of pits seen. above/below cargo line etc. for tanks showing any discoloration. manlid or valves. Area of Shell Affected For any condition indicate the percentage of area of the shell interior affected and remark whether the area affected follows any pattern e. Condition of Fittings Indicate if any of the condition(s) shown in the surface condition key are present on the syphon tube.Last Cargo Enter the proper name of the last cargo. pin hole. when pits are present. (2) SHELL CONDITION Complete the chart using the surface condition key provided. and specific characteristics of the condition(s) found. Additional Remarks Use the space for additional comments as needed.
30
. Discoloration Indicate the colour of any discoloration. or if pit size varies. identify size as appropriate on the map. Approximate Pitting Size Provide pit measurement size for depth and diameter (in mm). UN Number Enter United Nations reference number.

2 ISO DAMAGE LOCATION CODE SYSTEM Tank Components have their location identified by alpha codes (up to 4 characters in length). Location Code 1 1.APPENDIX 3. Appendix 3 below notes the components by section. The first character is selected to identify the appropriate face of the container as follows: • • • • • • • • • • R L T B F D U X I E right side left side roof or top bottom (floor) front end door / ladder & data plate end understructure whole container container interior container exterior
32
. The location code for each component is noted alongside the component. Damages will be located by panel(s). Only location codes noted alongside the component may be used. the container is divided nominally into 4ft x 4ft (120 cm x 120 cm) segments. A tank frame location code consists of four characters depending upon the area containing the entire vertical and horizontal length of the damage. For the purpose of locating damages.

lower component (ground) .both halves (i. The relevant codes are: .Location Code 2 2. • X left/right.right half • R .bottom (lower) component • B • G .upper (higher) component • H . top/bottom. To do this the vertical faces of the container are divided into the top and bottom halves and upper and lower main components.e. the horizontal faces of the container (roof or top and floor or bottom and understructure) are divided into right and left halves when viewed from the door end.top half • T . centre)
33
. The second character is selected to identify the appropriate part of the container face where the damage is contained.left half • L .

The third and fourth characters are selected to identify the section of the container in which the damage is contained. f) When the damage covers the entire length of the container face.for the right hand side corner post b) On all containers the right and left sides. the third character indicates the appropriate section number and the fourth character shall be filled in with ‘N’. 1 . the floor and the understructure are divided into equal sections as follows: 5 sections .for the left hand side corner post 2 . d) When the damage covers several adjacent sections the first and last section shall be employed.for the left half 3 . a) On all containers the front and door ends are divided into the vertical section numbered. then separate line items must be used.for the right half 4 . the third and fourth characters are filled in with ‘X’.1 through 5 c) When the damage covers one section only.Location Code 3 3. e) When the damage covers several nonadjacent sections or if the damage repair details are not the same.
34
. when viewed from the door end from left to right. the roof.

refixing or sealing panels removal of cargo stickers the code EXXX shall be used. a) In addition to the above described location code some components are more precisely identified in numerical order.Location Code 4 4. c) The particular components contained in all other faces such as the roof bows. side posts. crossmembers are numbered consecutively from the door end. f) When the damage covers several inside and outside faces of the container the code XXX shall be used. d) When the damage covers several faces of the inside of the container such as steam cleaning refurbishment or sealing of the panels the code IXXX shall be used.
35
. e) When the damage covers several faces of the outside of the container such as refurbishment. b) The particular components of the door and front end such as the door locking bars or front (side) posts are numbered consecutively from left to right when viewed from the door end. Numbering system for multiple components.

Residue of previous cargo that can only be removed by special procedures. component replacement. This is when the tank is not sufficiently clean. valves or blemishes / traces of previous cargo Removal of non standard decals or marks. i. recleaning of seals .
CLEANLINESS Cleanliness Certificate missing Normal cleaning of the tank interior and cargo spillage on exterior Normal cleaning of the tank exterior (road dirt. This code should not be used for seals and gaskets 18 (ML) 08 (CT) L L 15 (MS) 23 (DB) L L
28 GESPR (WT) 52 (IP) L
56
. partial or full refurbishment.Description / Remarks
Damg Cost Code Alloc. not cargo spillage) Additional cleaning of the tank due to improper cleaning before redelivery when the tank is returned with a valid cleaning document. These procedures can include structural repair.e. or a special cleaning method.

POLISHING Polishing of the tank . 21/2 and 5 year tests Leak test due to repairs on the shell etc.(code leak test same as the damage) 22 GESPR (TR) Various L 23 (DB) L
REFURB AND POST REFURB REPAIRS Full refurbishment and additional work as a result of abrasive blasting on units subject to refurbishment other than specified below. e. 17 (CO) Cap Prog. . Partial refurbishment and additional work as a result of abrasive blasting on units subject to refurbishment other than specified below.g.g. (Full Refur b) GES PR (Part Refurb) L
17 (CO)
08 (CT)
57
.Description / Remarks
Damg Cost Code Alloc. e.removal of cargo residues TESTING Periodic testing of the tank.interior. Where necessary due to cargo spillage/ contamination.

02 (SW) 24 (IO) 28 (WT) 28 (WT) L
GES D GES PR GES PR
MANUFACTURING DEFECTS New manufacturing defects (i. Defect
SEALANT Replacement of sealant which has failed as a result of ARD. As a result of deteriorating sealant on old repairs. Sealant required as a result of an impact damage or improper operation. 62 (MN) New Man. Defect
26 Existing (ME) Man.
WET/SATURATED INSULATION FOAM As a result of damage or failure of Lessee to carry out a repair or seal a damaged area. a manufacturing defect not detailed by a current technical bulletin). As a result of old improper repairs. 28 GESPR (WT) 16 (LO) L
58
.e.Description / Remarks
Damg Cost Code Alloc. As a result of an ARD. this also includes post refurbishment repair work. Existing manuf’turing defect (detailed by a current TTB).

ensuring the tank complies with requirements. provide for inspection as in f). All inspections must be carried out by a GE SeaCo Surveyor except for pre-delivery Onhire Surveys which should be carried out by the depot's own quality control personnel.INSPECTION PROCEDURES
INTRODUCTION There are seven standard inspections that might be carried out while tank containers are in depot off-hire. Additionally.
61
.
g) Pre-delivery Inspection Depot check prior to lease ensuring the tank complies with requirements. f) Lessee On-Hire Survey Performed prior to lease. Inspection Types and their Objectives a) Post-Estimate (Estimate Verification) : Ensures the Repair Estimate conforms to GE SeaCo requirements. GE SeaCo will confirm the inspections required. c) Post-Repair: Ensures the tank has been repaired correctly and is now a status ‘A’ tank.Post-Repair and On-Hire: Ensures the tank has been repaired correctly and is now a status ‘A’ tank. e) Supplementary Estimate Verification: Ensure the additional work is necessary. Include a written report and photos together with an updated cleaning certificate. b) Joint-survey: Confirms with the customer's surveyor the allocation of repair costs. d) Combined .

Only damage requiring repair is noted.Function Testing of the electrical heating or other components has been carried out. . .A current.
POST-ESTIMATE INSPECTION
Authenticating the Repair Estimate Must be performed promptly after depot has completed the Repair Estimate. . Must be performed on ALL tanks: .freemoved in a Status A condition.Correct method of repair is to be adopted. .Repair costs (labour / materials) are correct.
62
. . . When the GE SeaCo Surveyor is satisfied that the Repair Estimate for the Tank is correct he must sign and date the estimate.Damage Codes noted correctly.freemoved from manufacturer Note: These tanks will require a visual exterior inspection for transit damage Action to be taken by the GES Surveyor: The GE SeaCo Surveyor must inspect the tank and ensure that the repair estimate is correct.freemoved in a damaged condition .Tank Technical Bulletin requirements met. ensuring the Cost Allocation is correct. Repair estimate checks must include: .The last cargo data is correctly entered.An internal mapping chart completed if a problem exists on the shell interior.returned from lease . . . valid Certificate of Cleanliness.A.freemoved units that sustain transit damage Is not required on tanks: .Statutory Test requirements complied with. the Repair Estimate must be completed in accordance with the instructions in Section 3. Using combination damages and low cost reconditioned components as opposed to new. . .

The GE SeaCo Surveyor may alter an item on the estimate by amending the damage and repair codes. The customer's surveyor must provide his own copy of the Repair Estimate. Lessee Refused Costs Report Details of refused costs Colour photographs of the refused items Reasons why costs refused. and sign / date it himself. The estimate must clearly show all amendments. but refuses to sign the estimate. The GE SeaCo Surveyor must write on the estimate Costs agreed but customer's surveyor unwilling to sign. JOINT-SURVEYS (with customer’s surveyor) The joint survey is carried out after the postestimate inspection and must be performed using the GE SeaCo . The depot must report the joint survey result and amended costs immediately to the local GE SeaCo Ops Centre.2. The two surveyors must agree the material costs and labour hours as allocated or an amended allocation. After amendment the repair must still conform to Tank Inspection criteria or requirements. he should be warned that the survey is invalidated. All customers’ surveyors must attend at same time.
63
. Send report to GE SeaCo Ops Centre. Cost amendments must be agreed with depot.B. A copy of this form is shown at Appendix 4. description and the costs. The estimate must be signed and dated by both the GE SeaCo and customer's surveyors..Printed Estimate. If agreement is not reached between the surveyors then the GE SeaCo Surveyor must immediately report to the GE SeaCo Ops Centre. If the customer's surveyor agrees costs.

2 Statutory Test Validity
The inspector must ensure that the tank Statutory Test validity is current. The Post-Repair Inspection procedures must be performed in all depots. The requirements of the Statutory Test are noted in the Tank Inspection Handbook. Technical Bulletin’s and other Technical requirements that may be in force.
POST-REPAIR INSPECTION
The post-repair process is used as a means for GE SeaCo to verify that the unit has been repaired in accordance with the estimate and meets all applicable criteria for a unit to be onhired. At any time new or amended requirements or criteria may be introduced for specific tanks or tank containers in general.3.1 Tank Container
The tank container being inspected must meet the specifications of a status ‘A’ tank with regard to the inspection criteria as noted in the Tank Inspection Handbook. these must be applied in addition to the procedures below during the Post-Repair Inspection. otherwise it must be updated as necessary. All repairs noted on the estimate and any damages that were not noted on the estimate must be fully repaired.
64
. C.C. Post-Repair Inspection The following procedures must be followed when performing a Post-Repair Inspection. Additionally an internal mapping chart will be done and photos taken of the various components noted below in C. C.

3
Photographs and On-Hire Report
Every tank container will require a number of photographs to be taken during the On-Hire Inspection. ends. sides. C. The photographs must clearly show .
65
.5 GQ decal
When the On-Hire inspector is satisfied that the tank container meets all the necessary criteria he must issue a GQ sticker for that tank container. Any previous GQ Sticker must be removed. The report and photographs must be made available on the Inspection Company’s web site. At the conclusion of the On-Hire Inspection the inspector should revalidate the existing Cleaning Certificate or issue a new Certificate.4 Cleaning Certificate
Every tank container must enter the depot with a valid Cleaning document. C. underside and the top and bottom valve/ manlid compartment. the depot may then transmit the unit status to the Ops Centre. An On-Hire report must be completed in an approved format together with an internal mapping chart.interior. This should be placed into the document holder. The Cleaning Certificate shall be renewed. can the tank be noted a status ‘A’ tank. Only when all the above steps have been satisfactorily completed. top.C.

In this case no Additional Estimate is required. The cost of rework is for the depot’s account.
66
. Note 2 If the GE SeaCo Surveyor considers that additional repairs are required. Inspections will continue until the GE SeaCo Surveyor is satisfied that it meets the GE SeaCo requirements and quality standards. the costs of rectification must be for the depot account. the unit must be re-inspected by the GE SeaCo Surveyor.NOTES Post-Repair Note 1 If the GE SeaCo Surveyor considers that the depot has omitted to repair items included on the estimate or has not repaired items correctly. Rework repairs must commence immediately and be completed in a timescale agreed with the GE SeaCo Surveyor. then he must clearly mark these items for rework on the estimate. Following completion of rework. the depot must produce an Additional Estimate which must be approved by the GE SeaCo Surveyor. If the additional repairs are required as a result of damage caused to the unit whilst in the depot or repairs that should have been identified by the depot estimator at the time of offhire.

The survey must ensure that the actual work is actually necessary and that it conforms to GE SeaCo requirements and to allocate the costs to either the depot or GE SeaCo account.
SUPPLEMENTARY ESTIMATE VERIFICATION
The original estimate should indicate all damages requiring repair in addition to all TTB’s and maintenance work required at the time of redelivery. The Operations Centre may request a survey prior to work being authorised.
67
. Any additional work required above what was noted on the original estimate will be to the depot account unless the damages were not required or were hidden damage. Normally the only times a supplementary estimate for extra work will be required is when a tank container has been in depot for a period of time and the unit requires maintenance work or when there is a specific request from the Ops Centre to modify the tank or fittings.D COMBINED POST-REPAIR & ON-HIRE This inspection combines the inspection requirements of C Post-Repair and
F Lessee On-Hire Survey
E. Any supplementary estimate should be submitted as per all normal procedures for authorisation.

Inspection Guidelines for Tank Containers. the GE SeaCo Representative must note in the REMARKS box the words ‘acceptable to customer but customer's surveyor unwilling to sign’. If the customer's surveyor accepts the unit as being in satisfactory operating condition but nevertheless refuses to sign the On-Hire Survey form. In this case the procedures below must be followed in addition to the Pre-delivery Inspection procedures. Procedure This survey must be carried out with reference to the criteria detailed in Section 8. LESSEE ON-HIRE SURVEY If the customer requests an On-hire Survey then he should be encouraged to attend the Pre-delivery Inspection. The GE SeaCo Surveyor must immediately inform the local GE SeaCo Ops Centre: Customer’s surveyor rejects a unit as nonsatisfactory and in the opinion of the GE SeaCo Surveyor the unit is in satisfactory condition. If the customer does not require an On-hire Survey then the Pre-delivery Inspection carried out by the GE SeaCo Surveyor will serve to ensure that the tank container is in good working order prior to delivery to lease. The GE SeaCo Representative must immediately advise the local GE SeaCo OPs Centre. If an item is beyond the acceptable limits as specified in Section 8 the survey must cease until the required repairs have been carried out.
68
. In this situation the unit can be delivered to the customer. The GE SeaCo Representative must also add brief comments as to the reason for the refusal.F.

the GE SeaCo Surveyor must not sign it unless all the following conditions are fulfilled: .The customer's surveyor provides the GE SeaCo Representative with a copy of his own On-Hire Survey Report.
If the customer's surveyor has his own On-Hire Survey report and requests the GE SeaCo Surveyor to sign it. . . The customer's own On-Hire Survey Report does NOT take precedence over GE SeaCo's.All codes used are clearly defined on form. .The customer's surveyor also signs the GE SeaCo form.
69
.-
If the customer's surveyor requests further checks of the unit in addition to those detailed in this handbook. The GE SeaCo form is always the official report confirming the agreement between GE SeaCo and the customer regarding the operating condition and serviceability of the unit.All comments relating to the condition and operating serviceability of the unit are in accordance with those entered on the GE SeaCo form.

. The depot prior to delivery to the customer must survey every tank being delivered for which GE SeaCo has given release authorisation.Conforms to GE SeaCo booking requirements Any special requirements detailed in the booking advice have been completed . then it must reworked.
70
.G. . . .The tank container is of the correct type as detailed in the booking advice.Rework repairs must commence immediately and be completed in a timescale agreed with the GE SeaCo Operations Centre. The depot must ensure the tank: . .The unit must be re-inspected Electrical Or Reefer Tanks . Once the Pre-Delivery Inspection has been satisfactorily completed then the lower section of the GQ sticker must be completed. PRE-DELIVERY INSPECTION This inspection must be carried out immediately prior to release of the container. including specific requirements for Special Tanks.Is fit for service according to GE SeaCo repair requirements and quality standards.Must be fully operational according to the inspection criteria.If it is more than 6 months since the On-Hire Inspection then the pre-delivery inspection must include a leak check. If the tank is not repaired correctly. In the case of special tanks their individual requirements must be checked.depot must produce and retain the run test results. .The cost of rework is for the depot's a/c.

71
.1
GQ Stickers
All status ‘A’’ tank containers must have a completed GQ sticker as shown below.APPENDIX 4. it should be placed in the document holder.

Defects to the frame and bearer supports are often revealed by cracks in the welds. lack of fusion or misalignments to welds.
75
. (2) WELD DEFECTS Possible defects are porosity. However. (3) DEFECTS AFFECTING ISO DIMENSIONS This type of defect is often identified after difficulties have been experienced in lifting a container by spreader. Manufacturing defects must be identified and correctly reported on the Repair Estimate. Typical defects might be those involving: (1) FATIGUE CRACKS The most common fatigue cracks occur in the frame. tank support bearers and. it may be that a design defect to the end frame has caused misalignment. Over tolerance variances in ISO dimensions are more often as a result of damage or previous improper repair rather than defects in the original manufacture. All tanks should be checked for any signs of stress related failure of either welds or parent material.IDENTIFICATION OF MANUFACTURERS' DEFECTS The inspector should be aware of the need to monitor tank design and report potential manufacturing defects and unsatisfactory design in addition to actual manufacturing defects.

Where the corrosion appears on the exterior of the painted stainless steel shell this is often due to contamination by carbon steel particles at manufacture prior to painting. contamination of the substrate or brittle paint. (4) PAINT AND SURFACE PREPARATION Inspectors should be alert for any signs of corrosion that do not appear to be the result of normal deterioration or damage. It may be that defects to the security or water tightness of the cladding joints at manufacture are the root cause of the defect. Corrosion on a container of recent manufacture is a probable indication that the paint system is defective. Such detachment may involve the top coat separating from the primer coat leaving the primer intact or alternatively the entire paint coating may detach leaving the bare steel substrate. poor metal preparation. The following are the most common types of paint related problems: (i) Paint Film Detachment The detachment of areas of the paint film in the absence of signs of sufficient impact or chemical contamination is a sign of coating adhesion failure. This type of failure is the result of lack of intercoat adhesion.Expansion of the insulation causing the insulation and cladding to exceed ISO tolerances is often the result of moisture ingress.
76
. (ii) Light Surface Corrosion Light surface corrosion appearing through the paint film may indicate insufficient paint film thickness.

As the steel starts to break down the size of the blisters increase until they break through the paint film.
77
. Corrosion of aluminium fasteners and aluminium cladding might also be a result of electrolytic corrosion. However. usually the fasteners. In the early stages the blisters appear as small bumps beneath the paint film which at this stage is still undamaged. This may be a result of using incompatible materials. thermostat contacts and heating elements may be due to a manufacturer's design defect. (5) ELECTRICAL FAILURE Failure of items such as printed circuit boards. (iv) Electrolytic Corrosion Corrosion blisters described in (4)(iii) above can occur around data plates and other metal components attached to the container. Corrosion blisters form below the paint film and result in deep seated areas of rust and rapid decomposition of the steel. By this stage the corrosion process is well advanced and will have already significantly reduced the steel thickness. The common cause of defects to the above items is moisture ingress through joints in cladding and control boxes as a result of defects at manufacture.(iii) Corrosion Blisters This is the most serious type of corrosion and can cause much damage to the steel unless promptly treated. previous improper repairs or failure to carry out repairs to damage on a timely basis must be investigated.

or c) vulnerable to damage d) early deterioration. and which has not been identified in the Tank Fleet Survey by a Tank Technical Bulletin. The procedure covers units of all equipment types. which although not a defect may become one. any defect or design defects that may be present on a tank: a) Design difficult to repair b) Design frequently damaged. It applies both to 'new' Manufacturers' Defects and also 'existing' Manufacturers' Defects. not by reference to the data plate on the unit.
78
. The age of the unit must be determined by reference to the Tank Fleet Survey. For ease of reference the definition of New and Existing Manufacturers' Defects is: New Manufacturers' Defect Any failure discovered on a unit which is less than 5 years old and which cannot be attributed to age related deterioration (ARD).PROCEDURE FOR REPORTING MANUFACTURERS' DEFECTS Potential Manufacturing Defects and Unsatisfactory Design Depots and inspectors should report to the Engineering and Technical Services Dept.

A completed inspection report. the depot must without delay send to the local GE SeaCo Ops Centre: A copy of the full printed Repair Estimate. name of inspector. returning lessee. It does not cover the reporting or repair of in-service units on which manufacturers' defects have been discovered. Clear photographs illustrating the MD. and which has been either identified in the Tank Fleet Survey or covered by a Tank Technical Bulletin or other formal circular instruction issued by Engineering and Technical Services Dept. PROCEDURE The procedure shown below is concerned with units returned to depot. using the standard GESC Warranty Report form.
-
79
.
(1)
NEW MANUFACTURERS' DEFECTS (NEW MD)
When a New MD is identified. location. Each photo must be marked with the unit serial number. described in TTB No 30.
These procedures do not amend in any way the Fleet Condition Survey Report (FCSR) System. either off-hire from lease or from a freemove. date of photo. GE SeaCo London. No other reporting format should be used.Existing Manufacturers' Defect Any failure which has been confirmed by GE SeaCo London to be a Manufacturers' Defect.

Photographs should clearly indicate the potential or actual problem. (In most cases photos will be required for an initial period and then the requirement will be withdrawn).
NOTE: Photos are not required for all Existing MD's. the following must be sent by the depot to the local GE SeaCo Ops Centre: A copy of the full printed Repair Estimate. On the rear of the photograph the following must be clearly noted: unit number date depot or location where photo taken TTB number if applicable No Warranty Report or other inspection report is required for Existing MD's unless otherwise stated on the Technical Bulletin
80
. TTB's will state whether or not photos are required. (2) EXISTING MANUFACTURERS' DEFECTS (EXISTING MD)
For each unit on which an Existing MD is recorded. Clear photos illustrating the MD (subject to exceptions listed below). NOTE: Up to five units may be entered on one form providing all the units are of the same manufacturer and display similar defects. Each photo must be marked with the same data as listed above for New MD's.An example of the Warranty Report is shown as Appendix 1. In addition the TTB reference number must be shown.

-
-
-
-
Complete the Repair Estimate as normal be immediately report misuse to Ops Centre. or without ventilation (implosion). Used when the operating or assembly instructions have not been followed or when necessary components are not present or correctly fitted.
85
.IDENTIFICATION OF FREQUENT MISUSE OF TANK CONTAINERS A container may be deemed to have been misused if it has been subjected to any of the following conditions which have resulted in damage: Used in excess of the designed working pressure. Handled by any means other than those specified in ISO document DIS 3874. Handling by forklift equipment is not permitted for tank containers. Transported by any vehicle or vessel which is not suitable for the carriage of containers. Transported a cargo that has caused damage by reaction between the cargo and the container. Top side lift equipment (unladen tanks only) must be of the full frame type.

Containers subjected to misuse may be identified if they display characteristics such as: Used in excess of designed working pressure. splits or distortion to steam tubes or shell. Implosion will result in the tank shell or other components bowing inwards. It is caused by failure to vent the tank after cleaning or whilst discharging.

Handled by any means other than specified in ISO document DIS 3874. Top side lift equipment (unladen tanks only) must be of the full frame type. Distortion of the top third of tank shell (chains too short) Distortion of the manway area due to lifting by use of a yoke in the manway opening End frames leaning in towards the interior of the unit (chains too short) Permanent twist in the container about a diagonal horizontal axis. (Lifted by chains from two diagonally opposite corner castings) Distortion to the underside shell, steam tubes or cladding (lifting by forks) Distortion to the side shell or cladding due to top side lifting without adequate support to the bottom side Distortion of the tank support bearers or movement of the tank within the frame due to the unit having been dropped.

-

-

-

-

86

Transported a cargo that has caused damage to the tank by reaction between the cargo and the container. General corrosion and staining Corrosion pitting Stress corrosion cracking Damage to paint coating or cladding caused by spillage or storage in a chemical environment Transported by any vehicle or vessel which is not suitable for the carriage of containers Abrasion or damage caused by the use of makeshift lashing

Used when the operating or assembly instructions have not been followed or when necessary components are not present or correctly fitted Implosion of the tank shell due to inadequate venting on discharge Implosion of the tank shell due to inadequate venting after hot washing Splits in the insulation and cladding due to operation of the tank in excess of the maximum cargo temperatures Damage resulting from disregarding assembly or security instructions Damaged valves and fittings due to improper tools (incorrect size wrench) Damage to manway lid and compartment due to failure to secure when transporting or stacking the tank Burnt electrical components due to incorrect voltage supply Damage to electrical components due to failure to secure control box doors.

Sub-standard cleaning of the tank or fittings. A distinction has to be drawn between repairs in progress and therefore controllable and repairs. The repair is of a quality or condition which could still be defined as damage according to GE SeaCo guidelines. Any repair
91
. Use of incorrect materials.
-
-
-
-
Not all improper repairs. All repairs carried out under the control of GE SeaCo must be performed in accordance with GE SeaCo repair procedures.IMPROPER REPAIRS
An improper repair is any repair performed where any one of the following defects is present: The repair has not been performed in strict accordance with GE SeaCo guidelines. which are being considered for rectification. The repair has an adverse affect on the original ISO dimensions of the tank container. need to be reworked. The repair affects the structural integrity of the tank container. already in existence on a container. Poor quality welding or workmanship. Sub-standard preparation or painting. as defined.

Existing repairs which do not strictly meet GE SeaCo requirements can be considered acceptable if they meet the following requirements: The repair has been carried out in a competent manner using suitable materials and a good standard of workmanship. cladding panels. The repair has been in existence for a long time without any signs of failure. do not affect the structural integrity of the container. Abrasive polishing marks to the shell interior which do not significantly affect the cleanliness standard or structural integrity. although strictly not meeting GE SeaCo requirements. The materials used.g.performed in an GE SeaCo depot which does not meet the GE SeaCo repair criteria should be rejected and the tank container considered still damaged and unavailable for lease until the repair has been made good in accordance with GE SeaCo repair procedures. Repairs which may not have been properly cleaned and painted and are showing signs of superficial corrosion. Repairs to non-critical areas e. which are not unsightly and are watertight and secure.
-
-
-
-
-
92
.

INTRODUCTION ACCEPTABLE AND NOT ACCEPTABLE DAMAGE The inspection guide which follows lists the component parts of a tank container and defines the Tank Acceptable Container Condition (ACC) criteria for: NOT ACCEPTABLE DAMAGE ACCEPTABLE DAMAGE
NOT ACCEPTABLE DAMAGE is damage that affects the safety. DO NOT OPERATE VALVES /FITTINGS OR ENTER ANY TANK WHICH DOES NOT POSSESS A VALID CERTIFICATE OF CLEANLINESS AND VALID ENTRY CERTIFICATE.
95
. cargocarrying capacity or the ISO dimensional integrity of the tank container. THIS TYPE OF DAMAGE MUST BE REPAIRED ACCEPTABLE DAMAGE is minor damage which does not significantly affect any of the above conditions and therefore: NO REPAIR IS REQUIRED. OBSERVE THE SAFE INSPECTION PROCEDURES AND PRACTICE AS DETAILED IN SECTION 1 OF THIS HANDBOOK AND ALL REGIONAL HEALTH AND SAFETY REQUIREMENTS. structural integrity.

Transferable stains. If heavily stained tanks are redelivered. If the cleanliness document is not a Cleanliness Certificate the tank may be off-hired but a Cleanliness Certificate is required and should be added to the off-hire estimate and issued by a qualified person. NOTE: Tanks without a cleaning document must be considered unsafe and should not be inspected.
96
. See Section 3 for details. Abrasions or scratches more than 120 grit polish equivalent.
Acceptable Damage/Condition Discoloration or dull appearance. contact the Ops Centre immediately.a)
CLEANLINESS INTERIOR
Not Acceptable Damage/Condition Cargo. pitting. clean a test area at the time of estimate preparation to both determine the cost and ensure stains do not conceal corrosion pitting. Corrosion. contamination or odour.1 1.
An Internal Shell Condition Chart must be completed for all interior shell defects. to arrange re-cleaning prior to off-hire. Note: where stains are present. grinding or gouges. Missing or improper Cleanliness Certificate. A cleanliness document is required for all tanks prior to redelivery to depot for lease termination (off-hire).

Acceptable Damage/Condition Minor dust and dirt (NOT visible from 10 metres). Insecure or unserviceable label holders. the customer logo should be removed. General dust and dirt (visible from 10 mtrs). Minor label glue residue. grease Contamination of the valve or manlid compartments.If a customer logo has been fitted over or in place of the GE SeaCo logo. Remove and make good the area.Non-standard damaged label holders should not be replaced. Non-standard labels or misleading marks. It is not necessary to renew the GE SeaCo logo. 1. Oil. . Customer logo
Acceptable Damage/Condition Serviceable label holders. (See Section 12 of this chapter).
97
.b)
EXTERIOR
Not Acceptable Damage/Condition Cargo contamination (cargo overspill).c) FOREIGN MARKINGS
Not Acceptable Damage/Condition Hazard warning labels or cargo labels. Remnants of labels. Check areas of overspill for damage to paint and cladding.
NOTE: The valve and spill boxes must be clean.1. Inspect drain tubes to ensure they are clear.
NOTE: .

Dents greater than 10 mm and less than 15 mm in depth in excess of two per post. gouges or splits. Dents or distortions of a formed edge or face greater than 15 mm irrespective of length of deformation. Twisted or bent beyond the ISO. Dents greater than 10 mm exceeding 300 mm in length.a)
FRAME CORNER POSTS
Not Acceptable Damage Cuts. A maximum of two structurally sound inserts are allowed to each post.2 2.
-
Acceptable Damage Dents or distortions not exceeding 15 mm in depth except as qualified above. However existing inserts with square ends are acceptable if all other criteria are satisfied. Severe Corrosion. An insert may include a maximum of two formed edges. holes.
NOTE: The GE SeaCo preferred corner post insert shape has angled ends.
98
. Cracks in welds or parent metal. Improper repairs.

1i a. 2.1iv less than 150 mm between inserts.1iii
2.1i
2.
99
.1i b.1ii 2. more than two inserts per post.1iii 2.1iv
2. less than 300 mm from casting.Not Acceptable
a
b
2. overlapping inserts. 2. insert through 3 formed edges.1ii
2.

100
.Acceptable Damage
a
a
2. 2.2iii
2.2i
2.2ii
2. 2.2iv two inserts may have a common weld. 2.2i a min.2.2iii a full-leng .2iv
2.
2.ii min. insert at post ends is 300 mm.0th insert is allowed. distance between inserts is 150mm.2i b minimum size insert is 150mm.

insert or section repair is 50mm.2. If the planned insert or section will end within these areas then the repairs should be extended to the corner fitting or the existing weld. Out of straight greater than 25 mm per 2m. Out of ISO. Improper repairs. The minimum permissible length of an overplate. No insert or section may finish within 50mm of the corner fitting weld or within 50mm of an existing vertical weld. Distortion reducing clearance between end bottom rail and valve to less than 5mm. no maximum limit. Acceptable Damage Dents or distortions not exceeding 25mm. Cracks in welds or parent metal. bottom and inside faces of the rail where the formed edge is free of damage. Severe corrosion.
NOTE: If the damage cannot be straightened and it is necessary to repair either by an overplate. Over-plating is restricted to the top. holes gouges or splits. Loose or missing fasteners. Dents in bottom face of bottom rails which do not affect any formed edge.
101
. Dents or distortions greater than 25 mm. insert or a section then the following criteria will apply when assessing the type and extent of repair required.b
TOP /BOTTOM /SIDE /END /CRASH END RAILS (Incl. stacking supports and centre mounted crash rails)
Not Acceptable Damage Cuts.

. holes gouges or splits.
NOTE: In all cases of damage to tank bearer supports the tank shell must also be inspected for damage. Dents or distortion greater than 20mm Dents of a formed edge greater than 13mm.d)
TANK BEARER SUPPORTS
Not Acceptable Damage Cuts. Loose or missing fasteners. Cracks in welds or parent metal.
103
. This may require local removal of insulation. Improper repairs.
Acceptable Damage Dents not exceeding 13/20mm in depth as qualified above. Out of ISO. Severe corrosion.2. In all cases of severe corrosion to the tank bearer supports the section of the bearer attached to the shell below the insulation must be checked for structural integrity. The criteria for repair is detailed in 2(b) above except that over-plating is not permitted.

iii) -
iv) -
v) Cladding .e)
ISO DIMENSIONS (FRAME)
Not Acceptable Damage i) Diagonals Any damage which affects the ISO required diagonal measurements between corner fitting apertures. Side Frame Any dent. bend or bow beyond the limits of the ISO corner fittings.Any dent. Top or Underside Any dent.
NOTE: The maximum permitted difference in distance between centres of apertures of diagonally opposite corner fittings are: 20' container: 13mm All end frames: 10mm ii) End Frame: Any dent. bend or bow beyond the limits of the ISO corner fittings. bend or bow beyond the limits of the ISO corner fittings. bend or bow beyond the limits of the ISO corner fittings.
104
.

Care must be taken to ensure that drills or rivets do not damage the shell. Multiple patches on panel If when redelivered to depot the number of repairs or patches either present or required as part of the repairs. steam tubes or electrical components beneath the cladding.Aluminium alloy 150 x 150 mm. heating tubes and electrical components must also be checked. A number of small patches (multiple patches in the same area) can be replaced with a larger single patch or renewed panel in order to achieve a more aesthetic result. the tank shell.9 mm
The GRP or alloy colour must match original.GRP Min. Use overlay fibre glass tissue as the standard repair to formed GRP surfaces where riveted patches are impractical. then that section or panel must be replaced to achieve a more aesthetic appearance to the tank. Use overlay riveted patches as the standard repair. thick. distracts significantly from the aesthetic appearance of the tank. thickness . 2 mm 0. Minimum patch size Min. .NOTE: In all cases of damage to the cladding.
107
. Extend patches to the retainer strap where the patch is within 30 cm of the strap. NOTE: The following criteria will apply when assessing the type and extent of repair required. Infill repairs should be used for holes less than 25mm to FRP /GRP.

Not Acceptable Damage/Condition Distortion or damage to the dipstick assembly preventing operation.6.c)
DIPSTICK AND CALIBRATION CHART Dipsticks are not fitted as standard.
− If a dipstick is fitted at the time of offhire remove and place into GE SeaCo stock.
NOTE: − All tanks are fitted with a calibration chart.
111
. Illegible or insecure. Non stainless steel (AISI 316). Contamination or corrosion.

greater than 14mm)
116
.c) Syphon Pipe (Dip Pipe)
Not Acceptable Damage Leaks. The aperture (when a valve no fitted) must be fitted with a bolted blank plate. Where valve is fitted do not remove. Damage or distortion affecting correct operation or sealing. Contamination. 8. NOTE: top outlet only tanks must be fitted with syphon pipe. Non-stainless steel Gap (at bottom less than 8mm. Missing or non-operational parts.NOTE: Provision is made for top outlet valves but the top valve is not fitted. as standard. to tanks with bottom outlets.

cracks. Dents greater than 6mm to the top third of the tank shell. Improper repairs or non-standard fittings. creases or dents. (Type A and where the thickness is not below the minimum. Gouges.1mm. Stress corrosion. Dents greater than 10mm to the bottom two thirds of the tank shell. Corrosion or pitting.9
SHELL
Not Acceptable Damage − − − − − − − − − − − − − Leaks. Cuts. Defects to welds or parent materials. Sharp indentations. scratches or badly executed grinding (erratic pattern) deeper than 0. − Superficial etching with no resulting contamination traps.
121
. − Light abrasions or scratches to 120 grit polish equivalent or finer. Grinding coarser than120 grit.) − Original manufacture rolling marks. Hammer marks (golf ball surface)
Acceptable Damage/Condition − Gradual distortions /slow dents measured over the length between exterior stiffeners less than 10mm in the bottom two thirds or less than 6mm in the top third of tank shell. Excessive grinding or other metal depletion which reduces the shell thickness to less than the minimum. and excessive grinding scars /uneven pattern.

surface area affected and location on the chart detailed in Section 3. The investigation will involve localised polishing of the surface followed by visual examination with the aid of a magnifying glass and dye penetrant.
122
. An inspection must be carried out to determine the depth of pitting and that visible pitting does not mask cavity pitting or stress corrosion. An Internal Shell Condition Chart must be completed whenever defects requiring repair are detected. NOTE: All pitting must be reported by type.NOTE: Statutory re-testing is required after all welded repairs to the tank shell. Where pitting is recorded a thorough investigation must be carried out.

NOTE: In all cases of damage the steam tubes must be pressure tested.
Acceptable Damage/Condition Condensation which does not prevent legibility. Steam tube dust caps may be made from aluminium casting. NOTE: Thermometers are fitted as standard to ALL insulated tanks. Acceptable Damage/Condition − Tight dust caps which require to be removed by use of a normal wrench. (due to overpressure or ice expansion). − Damaged screwed fittings. stainless steel. Non standard type. Missing or insecure. Broken face or dial. Improperly fitted.
128
. − Missing or broken chain. replacement is not required. gun metal or bronze.11 a)
HEATING STEAM TUBE AND CAP
Not Acceptable Damage − Leaks. Defective steam traps should be removed. − Distortion to the tank shell. − Missing dust caps. b) − − − − THERMOMETER
Not Acceptable Damage Not operationing correctly. Replacement caps must be of the most economical material.

A supply cable of approximately 6m length and a CE17 plug are fitted as standard. NOTE: All parts must be well maintained and fully operational. − Corroded terminals or components. − Earth leakage less than 1 megohm. − Missing parts. cables or terminals. An electric heating function test is required at offhire (to prepare the EIR/RE) and at on-hire (pretrip inspection) for EVERY tank. − Improper repairs. − Insecure components.c)
ELECTRIC HEATING
Not Acceptable Damage − Non operational.
129
. − Damage or deterioration that may allow moisture ingress to control boxes or elements.

− Dents or distortion except as qualified above. replaced completely or removed completely using the cheapest option. − Missing or illegible. NOTE All Statutory markings (decals and plates) must be present. − Missing or illegible plates.12 a)
MISCELLANEOUS DECALS AND DATA PLATES
Not Acceptable Damage − Insecure. − Twisted or bent beyond limits of ISO. The company logo (SeaCo.
130
. If the logo is damaged or a repair is carried out over the logo then the logo should be either repaired in part as necessary.. − Obscured or partly missing decals. GE SeaCo) is not a statutory marking and as such is not required. Acceptable Damage/Condition − Scuffs and scratches.

g. ADR.TANK MARKINGS
Note: Some markings are only statutory it the tank is operated in a specific country or region.
131
. e.RID or BAM.

Leaks can be identified by the continual formation of bubbles in the solution when it is introduced around the area being tested. The pressurising medium should be introduced to the tank and raised (slowly and with due care) to the required pressure. Following repair completion where the tank failed the off-hire leak test. When the required pressure is reached it must be held for 10 minutes without loss in pressure. Allowable Working Pressure (MAWP). valves and fittings.13 a)
TEST Leak Test
Leak tests are required under the following circumstances: as part of the off-hire survey to check the tank shell.
-
This test does not replace the periodic leakage or hydrostatic test which is performed as part of the 2.5 or 5 year test procedures. This test will be used to test the integrity of the tank barrel. valves.
134
. b) Leak Test Procedure
The tank container should be pressurised with air as the pressurising medium. valves and fittings must be checked to ensure that they are not leaking. The Test Pressure should be a minimum pressure of 1bar and a maximum of 25% of the barrel’s Max. safety valves and fittings. The exterior flanges. Following repair completion where repairs could have affected the tank leak tightness.

Re-setting the foot valve (by opening and slamming) might be necessary to stop leaks.
Acceptable Damage/Condition Manufacturers tolerance as noted below. Checking the foot valve and the outlet valve separately.The bottom outlet valve should be tested using an apparatus similar to that shown below. Not Acceptable Damage Leaks. Because of this it is permissible for the internal valve seals to seep a tiny amount in accordance with the criteria. Set-up to Leak Test Bottom Outlet Valve
Observe the water surface for bubbles Water level
135
. Due to the nature of the air test medium it might seep pass the sealing faces where a liquid will not leak.

Any unit in depot where the unit is status A and the test becomes due within 6 months should be tested (except where instructions not to test the tank are issued in writing because the unit is not a demand unit) Any unit in depot to be delivered to a customer should have 6 months (or more) test remaining at the day of delivery (except when notified in writing to the contrary).
•
• •
•
•
•
137
.c)
Statutory Test
Statutory re-testing is required after all welded repairs to the shell and as noted below.5 year test but the test is more than 3 months before or after expiry date should be given a 5 year test. 2. Determination of which statutory test to carryout must be based on the criterion below: • A 2.5 year leak test should be carried out when a 2.5 years after the last 5 year test) providing the test is up to 3 months or less before or after test expiry. Any tank that requires a 2.e. NOTE: Dangerous goods cargo may only be transported in a tank container that has a valid test certificate. Any unit in depot under repair where the test date has 6 months or less remaining should be tested at the time of repair.5 year test is due (i. Any tank that requires a 5 year test should be given a 5 year test Any tank arriving into depot with 6 months or less remaining test date should be tested as part of the estimate.

This consolidated data plate should incorporate a CSC plate. Customs Type Approval plate etc.
Contact the GE SeaCo Operations Centre for the technical data. The new CSC plate must be fixed in a readily visible place as close as possible to other existing approval plates e. Use 4mm diameter zinc plated steel drive or selfsealing pull rivets to fix the plate to the tank frame.CONVENTION FOR SAFE CONTAINERS (CSC) 1 INTRODUCTION Every container must be checked on return to depot to ensure that it carries a valid data plate. All letters and numbers stamped on the plate must be a minimum of 5mm in height. In addition every container must be checked to ensure that it is marked to indicate that it is operated under GE SeaCo's Approved Continuous Examination Programme (ACEP).g. (as shown below). The majority of GE SeaCo tanks are fitted with a consolidated data plate. which must be stamped on the plate. See paragraph 3 below for detailed instructions. 2 FITTING A CSC PLATE A new data plate must be fitted when: The original data plate has been lost.
141
. An example of a typical data plate and the data required is illustrated below. The container has never been fitted with a data plate. If the data plate does not include a CSC plate then this must be fitted separately.

The standard ACEP decal is illustrated below:
GE SeaCo Ops Centres/Depots must obtain supplies of the GE SeaCo ACEP decal from Engineering and Technical Services Dept. GE SeaCo London. This approval number is unique to GE SeaCo and if a decal bearing any other approval number is found on the container it must be removed.
MARKING THE CONTAINER TO INDICATE THAT IT IS OPERATED UNDER ACEP
Every tank must be marked with the standard GE SeaCo ACEP approval number or a decal bearing the approval number ACEP-BDA-01 on or next to the CSC plate. If the ACEP decal is missing. fit the decal immediately next to the CSC plate.3. if there is insufficient space.. a decal bearing the above approval number must be fixed to the CSC plate in the section entitled Next Examination Due. Alternatively.
142
.